Home / 1,347.18-2,018.61-1,217.58

Finding the Fourth Proportional to 1,347.18, 2,018.61 and 1,217.58

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Solution

The fourth proportional to 1,347.18, 2,018.61 and 1,217.58 is: 1,824.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.18 : 2,018.61 = 1,217.58 : x
  2. Step 2: Convert to fraction form
    1,347.18/2,018.61 = 1,217.58/x
  3. Step 3: Cross multiply
    1,347.18x = 2,018.61 × 1,217.58
  4. Step 4: Simplify right side
    1,347.18x = 2,457,819.16
  5. Step 5: Solve for x
    x = 2,457,819.16/1,347.18
  6. Step 6: Final answer
    x = 1,824.42

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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.