Home / 2,159,515.14-2,980,130.85-1,254,155.46

Finding the Fourth Proportional to 2,159,515.14, 2,980,130.85 and 1,254,155.46

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Solution

The fourth proportional to 2,159,515.14, 2,980,130.85 and 1,254,155.46 is: 1,730,734.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159,515.14 : 2,980,130.85 = 1,254,155.46 : x
  2. Step 2: Convert to fraction form
    2,159,515.14/2,980,130.85 = 1,254,155.46/x
  3. Step 3: Cross multiply
    2,159,515.14x = 2,980,130.85 × 1,254,155.46
  4. Step 4: Simplify right side
    2,159,515.14x = 3,737,547,377,041.94
  5. Step 5: Solve for x
    x = 3,737,547,377,041.94/2,159,515.14
  6. Step 6: Final answer
    x = 1,730,734.51

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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.