Home / 3,543.32-5,315.13-946.28

Finding the Fourth Proportional to 3,543.32, 5,315.13 and 946.28

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Solution

The fourth proportional to 3,543.32, 5,315.13 and 946.28 is: 1,419.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.32 : 5,315.13 = 946.28 : x
  2. Step 2: Convert to fraction form
    3,543.32/5,315.13 = 946.28/x
  3. Step 3: Cross multiply
    3,543.32x = 5,315.13 × 946.28
  4. Step 4: Simplify right side
    3,543.32x = 5,029,574.64
  5. Step 5: Solve for x
    x = 5,029,574.64/3,543.32
  6. Step 6: Final answer
    x = 1,419.45

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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.