Home / 7,240.32-9,988.29-4,256.10

Finding the Fourth Proportional to 7,240.32, 9,988.29 and 4,256.10

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Solution

The fourth proportional to 7,240.32, 9,988.29 and 4,256.10 is: 5,871.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.32 : 9,988.29 = 4,256.10 : x
  2. Step 2: Convert to fraction form
    7,240.32/9,988.29 = 4,256.10/x
  3. Step 3: Cross multiply
    7,240.32x = 9,988.29 × 4,256.10
  4. Step 4: Simplify right side
    7,240.32x = 42,511,161.07
  5. Step 5: Solve for x
    x = 42,511,161.07/7,240.32
  6. Step 6: Final answer
    x = 5,871.45

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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.