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Finding the Fourth Proportional to 2,520.16, 3,779.04 and 876.50

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Solution

The fourth proportional to 2,520.16, 3,779.04 and 876.50 is: 1,314.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,520.16 : 3,779.04 = 876.50 : x
  2. Step 2: Convert to fraction form
    2,520.16/3,779.04 = 876.50/x
  3. Step 3: Cross multiply
    2,520.16x = 3,779.04 × 876.50
  4. Step 4: Simplify right side
    2,520.16x = 3,312,327.12
  5. Step 5: Solve for x
    x = 3,312,327.12/2,520.16
  6. Step 6: Final answer
    x = 1,314.33

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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.