Home / 5,725.70-8,588.55-5,215.40

Finding the Fourth Proportional to 5,725.70, 8,588.55 and 5,215.40

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Solution

The fourth proportional to 5,725.70, 8,588.55 and 5,215.40 is: 7,823.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,725.70 : 8,588.55 = 5,215.40 : x
  2. Step 2: Convert to fraction form
    5,725.70/8,588.55 = 5,215.40/x
  3. Step 3: Cross multiply
    5,725.70x = 8,588.55 × 5,215.40
  4. Step 4: Simplify right side
    5,725.70x = 44,792,723.67
  5. Step 5: Solve for x
    x = 44,792,723.67/5,725.70
  6. Step 6: Final answer
    x = 7,823.10

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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.