Home / 2,478.93-3,718.17-1,247.24

Finding the Fourth Proportional to 2,478.93, 3,718.17 and 1,247.24

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Solution

The fourth proportional to 2,478.93, 3,718.17 and 1,247.24 is: 1,870.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.93 : 3,718.17 = 1,247.24 : x
  2. Step 2: Convert to fraction form
    2,478.93/3,718.17 = 1,247.24/x
  3. Step 3: Cross multiply
    2,478.93x = 3,718.17 × 1,247.24
  4. Step 4: Simplify right side
    2,478.93x = 4,637,431.76
  5. Step 5: Solve for x
    x = 4,637,431.76/2,478.93
  6. Step 6: Final answer
    x = 1,870.74

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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.