Home / 2,864.19-4,296.35-916.39

Finding the Fourth Proportional to 2,864.19, 4,296.35 and 916.39

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Solution

The fourth proportional to 2,864.19, 4,296.35 and 916.39 is: 1,374.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.19 : 4,296.35 = 916.39 : x
  2. Step 2: Convert to fraction form
    2,864.19/4,296.35 = 916.39/x
  3. Step 3: Cross multiply
    2,864.19x = 4,296.35 × 916.39
  4. Step 4: Simplify right side
    2,864.19x = 3,937,132.18
  5. Step 5: Solve for x
    x = 3,937,132.18/2,864.19
  6. Step 6: Final answer
    x = 1,374.61

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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.