Home / 5,656.36-8,448.80-4,781.56

Finding the Fourth Proportional to 5,656.36, 8,448.80 and 4,781.56

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Solution

The fourth proportional to 5,656.36, 8,448.80 and 4,781.56 is: 7,142.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,656.36 : 8,448.80 = 4,781.56 : x
  2. Step 2: Convert to fraction form
    5,656.36/8,448.80 = 4,781.56/x
  3. Step 3: Cross multiply
    5,656.36x = 8,448.80 × 4,781.56
  4. Step 4: Simplify right side
    5,656.36x = 40,398,444.13
  5. Step 5: Solve for x
    x = 40,398,444.13/5,656.36
  6. Step 6: Final answer
    x = 7,142.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.