Home / 1,587.72-2,190.44-924.46

Finding the Fourth Proportional to 1,587.72, 2,190.44 and 924.46

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Solution

The fourth proportional to 1,587.72, 2,190.44 and 924.46 is: 1,275.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.72 : 2,190.44 = 924.46 : x
  2. Step 2: Convert to fraction form
    1,587.72/2,190.44 = 924.46/x
  3. Step 3: Cross multiply
    1,587.72x = 2,190.44 × 924.46
  4. Step 4: Simplify right side
    1,587.72x = 2,024,974.16
  5. Step 5: Solve for x
    x = 2,024,974.16/1,587.72
  6. Step 6: Final answer
    x = 1,275.40

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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.