Home / 2,128,778.28-2,937,264.48-1,354,127.04

Finding the Fourth Proportional to 2,128,778.28, 2,937,264.48 and 1,354,127.04

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Solution

The fourth proportional to 2,128,778.28, 2,937,264.48 and 1,354,127.04 is: 1,868,409.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,778.28 : 2,937,264.48 = 1,354,127.04 : x
  2. Step 2: Convert to fraction form
    2,128,778.28/2,937,264.48 = 1,354,127.04/x
  3. Step 3: Cross multiply
    2,128,778.28x = 2,937,264.48 × 1,354,127.04
  4. Step 4: Simplify right side
    2,128,778.28x = 3,977,429,255,999.54
  5. Step 5: Solve for x
    x = 3,977,429,255,999.54/2,128,778.28
  6. Step 6: Final answer
    x = 1,868,409.36

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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.