Home / 5,113.50-7,056.63-2,875.35

Finding the Fourth Proportional to 5,113.50, 7,056.63 and 2,875.35

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Solution

The fourth proportional to 5,113.50, 7,056.63 and 2,875.35 is: 3,967.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.50 : 7,056.63 = 2,875.35 : x
  2. Step 2: Convert to fraction form
    5,113.50/7,056.63 = 2,875.35/x
  3. Step 3: Cross multiply
    5,113.50x = 7,056.63 × 2,875.35
  4. Step 4: Simplify right side
    5,113.50x = 20,290,281.07
  5. Step 5: Solve for x
    x = 20,290,281.07/5,113.50
  6. Step 6: Final answer
    x = 3,967.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.