Home / 2,520.48-3,780.88-1,058.16

Finding the Fourth Proportional to 2,520.48, 3,780.88 and 1,058.16

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Solution

The fourth proportional to 2,520.48, 3,780.88 and 1,058.16 is: 1,587.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,520.48 : 3,780.88 = 1,058.16 : x
  2. Step 2: Convert to fraction form
    2,520.48/3,780.88 = 1,058.16/x
  3. Step 3: Cross multiply
    2,520.48x = 3,780.88 × 1,058.16
  4. Step 4: Simplify right side
    2,520.48x = 4,000,775.98
  5. Step 5: Solve for x
    x = 4,000,775.98/2,520.48
  6. Step 6: Final answer
    x = 1,587.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.