Home / 5,417.61-8,127.44-1,718.85

Finding the Fourth Proportional to 5,417.61, 8,127.44 and 1,718.85

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Solution

The fourth proportional to 5,417.61, 8,127.44 and 1,718.85 is: 2,578.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.61 : 8,127.44 = 1,718.85 : x
  2. Step 2: Convert to fraction form
    5,417.61/8,127.44 = 1,718.85/x
  3. Step 3: Cross multiply
    5,417.61x = 8,127.44 × 1,718.85
  4. Step 4: Simplify right side
    5,417.61x = 13,969,841.65
  5. Step 5: Solve for x
    x = 13,969,841.65/5,417.61
  6. Step 6: Final answer
    x = 2,578.60

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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.