Home / 2,210.16-3,314.88-749.28

Finding the Fourth Proportional to 2,210.16, 3,314.88 and 749.28

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Solution

The fourth proportional to 2,210.16, 3,314.88 and 749.28 is: 1,123.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.16 : 3,314.88 = 749.28 : x
  2. Step 2: Convert to fraction form
    2,210.16/3,314.88 = 749.28/x
  3. Step 3: Cross multiply
    2,210.16x = 3,314.88 × 749.28
  4. Step 4: Simplify right side
    2,210.16x = 2,483,773.29
  5. Step 5: Solve for x
    x = 2,483,773.29/2,210.16
  6. Step 6: Final answer
    x = 1,123.80

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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.