Home / 7,726.89-10,663.08-4,190.10

Finding the Fourth Proportional to 7,726.89, 10,663.08 and 4,190.10

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Solution

The fourth proportional to 7,726.89, 10,663.08 and 4,190.10 is: 5,782.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.89 : 10,663.08 = 4,190.10 : x
  2. Step 2: Convert to fraction form
    7,726.89/10,663.08 = 4,190.10/x
  3. Step 3: Cross multiply
    7,726.89x = 10,663.08 × 4,190.10
  4. Step 4: Simplify right side
    7,726.89x = 44,679,371.51
  5. Step 5: Solve for x
    x = 44,679,371.51/7,726.89
  6. Step 6: Final answer
    x = 5,782.32

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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.