Home / 1,651.23-2,280.20-1,062.78

Finding the Fourth Proportional to 1,651.23, 2,280.20 and 1,062.78

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Solution

The fourth proportional to 1,651.23, 2,280.20 and 1,062.78 is: 1,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,651.23 : 2,280.20 = 1,062.78 : x
  2. Step 2: Convert to fraction form
    1,651.23/2,280.20 = 1,062.78/x
  3. Step 3: Cross multiply
    1,651.23x = 2,280.20 × 1,062.78
  4. Step 4: Simplify right side
    1,651.23x = 2,423,345.64
  5. Step 5: Solve for x
    x = 2,423,345.64/1,651.23
  6. Step 6: Final answer
    x = 1,467.60

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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.