Home / 1,554.34-2,143.92-1,487.92

Finding the Fourth Proportional to 1,554.34, 2,143.92 and 1,487.92

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Solution

The fourth proportional to 1,554.34, 2,143.92 and 1,487.92 is: 2,052.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.34 : 2,143.92 = 1,487.92 : x
  2. Step 2: Convert to fraction form
    1,554.34/2,143.92 = 1,487.92/x
  3. Step 3: Cross multiply
    1,554.34x = 2,143.92 × 1,487.92
  4. Step 4: Simplify right side
    1,554.34x = 3,189,981.45
  5. Step 5: Solve for x
    x = 3,189,981.45/1,554.34
  6. Step 6: Final answer
    x = 2,052.31

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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.