Home / 5,312.39-7,968.78-2,712.29

Finding the Fourth Proportional to 5,312.39, 7,968.78 and 2,712.29

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Solution

The fourth proportional to 5,312.39, 7,968.78 and 2,712.29 is: 4,068.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.39 : 7,968.78 = 2,712.29 : x
  2. Step 2: Convert to fraction form
    5,312.39/7,968.78 = 2,712.29/x
  3. Step 3: Cross multiply
    5,312.39x = 7,968.78 × 2,712.29
  4. Step 4: Simplify right side
    5,312.39x = 21,613,602.46
  5. Step 5: Solve for x
    x = 21,613,602.46/5,312.39
  6. Step 6: Final answer
    x = 4,068.53

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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.