Home / 5,615.74-7,756.59-3,853.18

Finding the Fourth Proportional to 5,615.74, 7,756.59 and 3,853.18

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Solution

The fourth proportional to 5,615.74, 7,756.59 and 3,853.18 is: 5,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.74 : 7,756.59 = 3,853.18 : x
  2. Step 2: Convert to fraction form
    5,615.74/7,756.59 = 3,853.18/x
  3. Step 3: Cross multiply
    5,615.74x = 7,756.59 × 3,853.18
  4. Step 4: Simplify right side
    5,615.74x = 29,887,537.46
  5. Step 5: Solve for x
    x = 29,887,537.46/5,615.74
  6. Step 6: Final answer
    x = 5,322.10

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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.