Home / 7,547.40-10,415.13-4,190.37

Finding the Fourth Proportional to 7,547.40, 10,415.13 and 4,190.37

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Solution

The fourth proportional to 7,547.40, 10,415.13 and 4,190.37 is: 5,782.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,547.40 : 10,415.13 = 4,190.37 : x
  2. Step 2: Convert to fraction form
    7,547.40/10,415.13 = 4,190.37/x
  3. Step 3: Cross multiply
    7,547.40x = 10,415.13 × 4,190.37
  4. Step 4: Simplify right side
    7,547.40x = 43,643,248.30
  5. Step 5: Solve for x
    x = 43,643,248.30/7,547.40
  6. Step 6: Final answer
    x = 5,782.55

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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.