Home / 2,184.50-3,010.40-1,397.18

Finding the Fourth Proportional to 2,184.50, 3,010.40 and 1,397.18

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Solution

The fourth proportional to 2,184.50, 3,010.40 and 1,397.18 is: 1,925.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.50 : 3,010.40 = 1,397.18 : x
  2. Step 2: Convert to fraction form
    2,184.50/3,010.40 = 1,397.18/x
  3. Step 3: Cross multiply
    2,184.50x = 3,010.40 × 1,397.18
  4. Step 4: Simplify right side
    2,184.50x = 4,206,070.67
  5. Step 5: Solve for x
    x = 4,206,070.67/2,184.50
  6. Step 6: Final answer
    x = 1,925.42

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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.