Home / 4,314.07-6,471.15-1,392.40

Finding the Fourth Proportional to 4,314.07, 6,471.15 and 1,392.40

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Solution

The fourth proportional to 4,314.07, 6,471.15 and 1,392.40 is: 2,088.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,314.07 : 6,471.15 = 1,392.40 : x
  2. Step 2: Convert to fraction form
    4,314.07/6,471.15 = 1,392.40/x
  3. Step 3: Cross multiply
    4,314.07x = 6,471.15 × 1,392.40
  4. Step 4: Simplify right side
    4,314.07x = 9,010,429.26
  5. Step 5: Solve for x
    x = 9,010,429.26/4,314.07
  6. Step 6: Final answer
    x = 2,088.61

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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.