Home / 5,302.76-7,312.68-3,509.42

Finding the Fourth Proportional to 5,302.76, 7,312.68 and 3,509.42

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Solution

The fourth proportional to 5,302.76, 7,312.68 and 3,509.42 is: 4,839.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,302.76 : 7,312.68 = 3,509.42 : x
  2. Step 2: Convert to fraction form
    5,302.76/7,312.68 = 3,509.42/x
  3. Step 3: Cross multiply
    5,302.76x = 7,312.68 × 3,509.42
  4. Step 4: Simplify right side
    5,302.76x = 25,663,228.88
  5. Step 5: Solve for x
    x = 25,663,228.88/5,302.76
  6. Step 6: Final answer
    x = 4,839.60

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Double 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.