Home / 2,154,013.12-2,972,417.04-1,187,140.48

Finding the Fourth Proportional to 2,154,013.12, 2,972,417.04 and 1,187,140.48

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Solution

The fourth proportional to 2,154,013.12, 2,972,417.04 and 1,187,140.48 is: 1,638,187.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,013.12 : 2,972,417.04 = 1,187,140.48 : x
  2. Step 2: Convert to fraction form
    2,154,013.12/2,972,417.04 = 1,187,140.48/x
  3. Step 3: Cross multiply
    2,154,013.12x = 2,972,417.04 × 1,187,140.48
  4. Step 4: Simplify right side
    2,154,013.12x = 3,528,676,591,625.78
  5. Step 5: Solve for x
    x = 3,528,676,591,625.78/2,154,013.12
  6. Step 6: Final answer
    x = 1,638,187.14

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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.