Home / 5,085.78-7,023.51-4,535.70

Finding the Fourth Proportional to 5,085.78, 7,023.51 and 4,535.70

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Solution

The fourth proportional to 5,085.78, 7,023.51 and 4,535.70 is: 6,263.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.78 : 7,023.51 = 4,535.70 : x
  2. Step 2: Convert to fraction form
    5,085.78/7,023.51 = 4,535.70/x
  3. Step 3: Cross multiply
    5,085.78x = 7,023.51 × 4,535.70
  4. Step 4: Simplify right side
    5,085.78x = 31,856,534.31
  5. Step 5: Solve for x
    x = 31,856,534.31/5,085.78
  6. Step 6: Final answer
    x = 6,263.84

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Half scale
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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.