Home / 2,587.92-3,572.12-2,455.65

Finding the Fourth Proportional to 2,587.92, 3,572.12 and 2,455.65

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Solution

The fourth proportional to 2,587.92, 3,572.12 and 2,455.65 is: 3,389.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.92 : 3,572.12 = 2,455.65 : x
  2. Step 2: Convert to fraction form
    2,587.92/3,572.12 = 2,455.65/x
  3. Step 3: Cross multiply
    2,587.92x = 3,572.12 × 2,455.65
  4. Step 4: Simplify right side
    2,587.92x = 8,771,864.20
  5. Step 5: Solve for x
    x = 8,771,864.20/2,587.92
  6. Step 6: Final answer
    x = 3,389.54

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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.