Home / 4,990.34-7,483.64-1,657.96

Finding the Fourth Proportional to 4,990.34, 7,483.64 and 1,657.96

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Solution

The fourth proportional to 4,990.34, 7,483.64 and 1,657.96 is: 2,486.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.34 : 7,483.64 = 1,657.96 : x
  2. Step 2: Convert to fraction form
    4,990.34/7,483.64 = 1,657.96/x
  3. Step 3: Cross multiply
    4,990.34x = 7,483.64 × 1,657.96
  4. Step 4: Simplify right side
    4,990.34x = 12,407,575.77
  5. Step 5: Solve for x
    x = 12,407,575.77/4,990.34
  6. Step 6: Final answer
    x = 2,486.32

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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.