Home / 1,709.12-2,550.88-1,572.32

Finding the Fourth Proportional to 1,709.12, 2,550.88 and 1,572.32

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Solution

The fourth proportional to 1,709.12, 2,550.88 and 1,572.32 is: 2,346.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709.12 : 2,550.88 = 1,572.32 : x
  2. Step 2: Convert to fraction form
    1,709.12/2,550.88 = 1,572.32/x
  3. Step 3: Cross multiply
    1,709.12x = 2,550.88 × 1,572.32
  4. Step 4: Simplify right side
    1,709.12x = 4,010,799.64
  5. Step 5: Solve for x
    x = 4,010,799.64/1,709.12
  6. Step 6: Final answer
    x = 2,346.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.