Home / 5,376.15-8,065.17-1,678.23

Finding the Fourth Proportional to 5,376.15, 8,065.17 and 1,678.23

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Solution

The fourth proportional to 5,376.15, 8,065.17 and 1,678.23 is: 2,517.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.15 : 8,065.17 = 1,678.23 : x
  2. Step 2: Convert to fraction form
    5,376.15/8,065.17 = 1,678.23/x
  3. Step 3: Cross multiply
    5,376.15x = 8,065.17 × 1,678.23
  4. Step 4: Simplify right side
    5,376.15x = 13,535,210.25
  5. Step 5: Solve for x
    x = 13,535,210.25/5,376.15
  6. Step 6: Final answer
    x = 2,517.64

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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.