Home / 1,510.42-2,083.17-1,247.98

Finding the Fourth Proportional to 1,510.42, 2,083.17 and 1,247.98

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Solution

The fourth proportional to 1,510.42, 2,083.17 and 1,247.98 is: 1,721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510.42 : 2,083.17 = 1,247.98 : x
  2. Step 2: Convert to fraction form
    1,510.42/2,083.17 = 1,247.98/x
  3. Step 3: Cross multiply
    1,510.42x = 2,083.17 × 1,247.98
  4. Step 4: Simplify right side
    1,510.42x = 2,599,753.97
  5. Step 5: Solve for x
    x = 2,599,753.97/1,510.42
  6. Step 6: Final answer
    x = 1,721.22

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1.5x scale

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.