Home / 5,786.40-7,988.28-4,457.18

Finding the Fourth Proportional to 5,786.40, 7,988.28 and 4,457.18

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Solution

The fourth proportional to 5,786.40, 7,988.28 and 4,457.18 is: 6,153.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,786.40 : 7,988.28 = 4,457.18 : x
  2. Step 2: Convert to fraction form
    5,786.40/7,988.28 = 4,457.18/x
  3. Step 3: Cross multiply
    5,786.40x = 7,988.28 × 4,457.18
  4. Step 4: Simplify right side
    5,786.40x = 35,605,201.85
  5. Step 5: Solve for x
    x = 35,605,201.85/5,786.40
  6. Step 6: Final answer
    x = 6,153.26

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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.