Home / 7,385.84-11,080.40-2,457.12

Finding the Fourth Proportional to 7,385.84, 11,080.40 and 2,457.12

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Solution

The fourth proportional to 7,385.84, 11,080.40 and 2,457.12 is: 3,686.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385.84 : 11,080.40 = 2,457.12 : x
  2. Step 2: Convert to fraction form
    7,385.84/11,080.40 = 2,457.12/x
  3. Step 3: Cross multiply
    7,385.84x = 11,080.40 × 2,457.12
  4. Step 4: Simplify right side
    7,385.84x = 27,225,872.45
  5. Step 5: Solve for x
    x = 27,225,872.45/7,385.84
  6. Step 6: Final answer
    x = 3,686.23

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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.