Home / 1,520.64-2,279.37-973.17

Finding the Fourth Proportional to 1,520.64, 2,279.37 and 973.17

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Solution

The fourth proportional to 1,520.64, 2,279.37 and 973.17 is: 1,458.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.64 : 2,279.37 = 973.17 : x
  2. Step 2: Convert to fraction form
    1,520.64/2,279.37 = 973.17/x
  3. Step 3: Cross multiply
    1,520.64x = 2,279.37 × 973.17
  4. Step 4: Simplify right side
    1,520.64x = 2,218,214.50
  5. Step 5: Solve for x
    x = 2,218,214.50/1,520.64
  6. Step 6: Final answer
    x = 1,458.74

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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.