Home / 3,740,349.76-5,160,421.92-2,129,577.28

Finding the Fourth Proportional to 3,740,349.76, 5,160,421.92 and 2,129,577.28

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Solution

The fourth proportional to 3,740,349.76, 5,160,421.92 and 2,129,577.28 is: 2,938,098.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740,349.76 : 5,160,421.92 = 2,129,577.28 : x
  2. Step 2: Convert to fraction form
    3,740,349.76/5,160,421.92 = 2,129,577.28/x
  3. Step 3: Cross multiply
    3,740,349.76x = 5,160,421.92 × 2,129,577.28
  4. Step 4: Simplify right side
    3,740,349.76x = 10,989,517,276,045.98
  5. Step 5: Solve for x
    x = 10,989,517,276,045.98/3,740,349.76
  6. Step 6: Final answer
    x = 2,938,098.84

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1.5x scale

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.