Home / 7,547.28-10,415.28-4,190.16

Finding the Fourth Proportional to 7,547.28, 10,415.28 and 4,190.16

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Solution

The fourth proportional to 7,547.28, 10,415.28 and 4,190.16 is: 5,782.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,547.28 : 10,415.28 = 4,190.16 : x
  2. Step 2: Convert to fraction form
    7,547.28/10,415.28 = 4,190.16/x
  3. Step 3: Cross multiply
    7,547.28x = 10,415.28 × 4,190.16
  4. Step 4: Simplify right side
    7,547.28x = 43,641,689.64
  5. Step 5: Solve for x
    x = 43,641,689.64/7,547.28
  6. Step 6: Final answer
    x = 5,782.44

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Find fourth proportional to 7,548.28, 10,416.66 and 4,191.16
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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.