Home / 7,412.28-10,228.80-4,055.06

Finding the Fourth Proportional to 7,412.28, 10,228.80 and 4,055.06

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Solution

The fourth proportional to 7,412.28, 10,228.80 and 4,055.06 is: 5,595.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.28 : 10,228.80 = 4,055.06 : x
  2. Step 2: Convert to fraction form
    7,412.28/10,228.80 = 4,055.06/x
  3. Step 3: Cross multiply
    7,412.28x = 10,228.80 × 4,055.06
  4. Step 4: Simplify right side
    7,412.28x = 41,478,346.58
  5. Step 5: Solve for x
    x = 41,478,346.58/7,412.28
  6. Step 6: Final answer
    x = 5,595.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.