Home / 3,148.16-4,722.12-1,298.76

Finding the Fourth Proportional to 3,148.16, 4,722.12 and 1,298.76

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Solution

The fourth proportional to 3,148.16, 4,722.12 and 1,298.76 is: 1,948.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.16 : 4,722.12 = 1,298.76 : x
  2. Step 2: Convert to fraction form
    3,148.16/4,722.12 = 1,298.76/x
  3. Step 3: Cross multiply
    3,148.16x = 4,722.12 × 1,298.76
  4. Step 4: Simplify right side
    3,148.16x = 6,132,900.57
  5. Step 5: Solve for x
    x = 6,132,900.57/3,148.16
  6. Step 6: Final answer
    x = 1,948.09

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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.