Home / 2,479.55-3,423.71-1,857.20

Finding the Fourth Proportional to 2,479.55, 3,423.71 and 1,857.20

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Solution

The fourth proportional to 2,479.55, 3,423.71 and 1,857.20 is: 2,564.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.55 : 3,423.71 = 1,857.20 : x
  2. Step 2: Convert to fraction form
    2,479.55/3,423.71 = 1,857.20/x
  3. Step 3: Cross multiply
    2,479.55x = 3,423.71 × 1,857.20
  4. Step 4: Simplify right side
    2,479.55x = 6,358,501.74
  5. Step 5: Solve for x
    x = 6,358,501.74/2,479.55
  6. Step 6: Final answer
    x = 2,564.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.