Home / 3,457.20-5,182.68-1,264.40

Finding the Fourth Proportional to 3,457.20, 5,182.68 and 1,264.40

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Solution

The fourth proportional to 3,457.20, 5,182.68 and 1,264.40 is: 1,895.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.20 : 5,182.68 = 1,264.40 : x
  2. Step 2: Convert to fraction form
    3,457.20/5,182.68 = 1,264.40/x
  3. Step 3: Cross multiply
    3,457.20x = 5,182.68 × 1,264.40
  4. Step 4: Simplify right side
    3,457.20x = 6,552,980.59
  5. Step 5: Solve for x
    x = 6,552,980.59/3,457.20
  6. Step 6: Final answer
    x = 1,895.46

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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.