Home / 5,688.50-8,532.30-1,990.34

Finding the Fourth Proportional to 5,688.50, 8,532.30 and 1,990.34

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Solution

The fourth proportional to 5,688.50, 8,532.30 and 1,990.34 is: 2,985.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.50 : 8,532.30 = 1,990.34 : x
  2. Step 2: Convert to fraction form
    5,688.50/8,532.30 = 1,990.34/x
  3. Step 3: Cross multiply
    5,688.50x = 8,532.30 × 1,990.34
  4. Step 4: Simplify right side
    5,688.50x = 16,982,177.98
  5. Step 5: Solve for x
    x = 16,982,177.98/5,688.50
  6. Step 6: Final answer
    x = 2,985.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.