Home / 7,487.36-11,230.72-2,870.08

Finding the Fourth Proportional to 7,487.36, 11,230.72 and 2,870.08

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Solution

The fourth proportional to 7,487.36, 11,230.72 and 2,870.08 is: 4,305.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.36 : 11,230.72 = 2,870.08 : x
  2. Step 2: Convert to fraction form
    7,487.36/11,230.72 = 2,870.08/x
  3. Step 3: Cross multiply
    7,487.36x = 11,230.72 × 2,870.08
  4. Step 4: Simplify right side
    7,487.36x = 32,233,064.86
  5. Step 5: Solve for x
    x = 32,233,064.86/7,487.36
  6. Step 6: Final answer
    x = 4,305.00

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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.