Home / 7,041.86-9,717.63-3,898.07

Finding the Fourth Proportional to 7,041.86, 9,717.63 and 3,898.07

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Solution

The fourth proportional to 7,041.86, 9,717.63 and 3,898.07 is: 5,379.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,041.86 : 9,717.63 = 3,898.07 : x
  2. Step 2: Convert to fraction form
    7,041.86/9,717.63 = 3,898.07/x
  3. Step 3: Cross multiply
    7,041.86x = 9,717.63 × 3,898.07
  4. Step 4: Simplify right side
    7,041.86x = 37,880,001.97
  5. Step 5: Solve for x
    x = 37,880,001.97/7,041.86
  6. Step 6: Final answer
    x = 5,379.26

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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.