Home / 1,279.08-1,916.78-630.27

Finding the Fourth Proportional to 1,279.08, 1,916.78 and 630.27

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Solution

The fourth proportional to 1,279.08, 1,916.78 and 630.27 is: 944.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279.08 : 1,916.78 = 630.27 : x
  2. Step 2: Convert to fraction form
    1,279.08/1,916.78 = 630.27/x
  3. Step 3: Cross multiply
    1,279.08x = 1,916.78 × 630.27
  4. Step 4: Simplify right side
    1,279.08x = 1,208,088.93
  5. Step 5: Solve for x
    x = 1,208,088.93/1,279.08
  6. Step 6: Final answer
    x = 944.50

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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.