Home / 1,487.46-2,220.36-1,377.66

Finding the Fourth Proportional to 1,487.46, 2,220.36 and 1,377.66

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Solution

The fourth proportional to 1,487.46, 2,220.36 and 1,377.66 is: 2,056.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.46 : 2,220.36 = 1,377.66 : x
  2. Step 2: Convert to fraction form
    1,487.46/2,220.36 = 1,377.66/x
  3. Step 3: Cross multiply
    1,487.46x = 2,220.36 × 1,377.66
  4. Step 4: Simplify right side
    1,487.46x = 3,058,901.16
  5. Step 5: Solve for x
    x = 3,058,901.16/1,487.46
  6. Step 6: Final answer
    x = 2,056.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.