Home / 7,239.10-9,991.03-4,586.76

Finding the Fourth Proportional to 7,239.10, 9,991.03 and 4,586.76

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Solution

The fourth proportional to 7,239.10, 9,991.03 and 4,586.76 is: 6,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.10 : 9,991.03 = 4,586.76 : x
  2. Step 2: Convert to fraction form
    7,239.10/9,991.03 = 4,586.76/x
  3. Step 3: Cross multiply
    7,239.10x = 9,991.03 × 4,586.76
  4. Step 4: Simplify right side
    7,239.10x = 45,826,406.81
  5. Step 5: Solve for x
    x = 45,826,406.81/7,239.10
  6. Step 6: Final answer
    x = 6,330.40

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Half scale
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Double scale
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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.