Home / 7,547.50-10,415.56-4,190.30

Finding the Fourth Proportional to 7,547.50, 10,415.56 and 4,190.30

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Solution

The fourth proportional to 7,547.50, 10,415.56 and 4,190.30 is: 5,782.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,547.50 : 10,415.56 = 4,190.30 : x
  2. Step 2: Convert to fraction form
    7,547.50/10,415.56 = 4,190.30/x
  3. Step 3: Cross multiply
    7,547.50x = 10,415.56 × 4,190.30
  4. Step 4: Simplify right side
    7,547.50x = 43,644,321.07
  5. Step 5: Solve for x
    x = 43,644,321.07/7,547.50
  6. Step 6: Final answer
    x = 5,782.62

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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.