Home / 5,109.04-7,663.76-1,411.60

Finding the Fourth Proportional to 5,109.04, 7,663.76 and 1,411.60

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Solution

The fourth proportional to 5,109.04, 7,663.76 and 1,411.60 is: 2,117.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.04 : 7,663.76 = 1,411.60 : x
  2. Step 2: Convert to fraction form
    5,109.04/7,663.76 = 1,411.60/x
  3. Step 3: Cross multiply
    5,109.04x = 7,663.76 × 1,411.60
  4. Step 4: Simplify right side
    5,109.04x = 10,818,163.62
  5. Step 5: Solve for x
    x = 10,818,163.62/5,109.04
  6. Step 6: Final answer
    x = 2,117.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.