Home / 3,547.45-5,315.10-2,247.40

Finding the Fourth Proportional to 3,547.45, 5,315.10 and 2,247.40

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Solution

The fourth proportional to 3,547.45, 5,315.10 and 2,247.40 is: 3,367.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.45 : 5,315.10 = 2,247.40 : x
  2. Step 2: Convert to fraction form
    3,547.45/5,315.10 = 2,247.40/x
  3. Step 3: Cross multiply
    3,547.45x = 5,315.10 × 2,247.40
  4. Step 4: Simplify right side
    3,547.45x = 11,945,155.74
  5. Step 5: Solve for x
    x = 11,945,155.74/3,547.45
  6. Step 6: Final answer
    x = 3,367.25

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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.