Home / 1,543.49-2,130.73-1,013.14

Finding the Fourth Proportional to 1,543.49, 2,130.73 and 1,013.14

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Solution

The fourth proportional to 1,543.49, 2,130.73 and 1,013.14 is: 1,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543.49 : 2,130.73 = 1,013.14 : x
  2. Step 2: Convert to fraction form
    1,543.49/2,130.73 = 1,013.14/x
  3. Step 3: Cross multiply
    1,543.49x = 2,130.73 × 1,013.14
  4. Step 4: Simplify right side
    1,543.49x = 2,158,727.79
  5. Step 5: Solve for x
    x = 2,158,727.79/1,543.49
  6. Step 6: Final answer
    x = 1,398.60

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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.