Home / 4,752.83-7,129.22-1,290.08

Finding the Fourth Proportional to 4,752.83, 7,129.22 and 1,290.08

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Solution

The fourth proportional to 4,752.83, 7,129.22 and 1,290.08 is: 1,935.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,752.83 : 7,129.22 = 1,290.08 : x
  2. Step 2: Convert to fraction form
    4,752.83/7,129.22 = 1,290.08/x
  3. Step 3: Cross multiply
    4,752.83x = 7,129.22 × 1,290.08
  4. Step 4: Simplify right side
    4,752.83x = 9,197,285.19
  5. Step 5: Solve for x
    x = 9,197,285.19/4,752.83
  6. Step 6: Final answer
    x = 1,935.12

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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.