Home / 7,110.36-10,666.80-2,430.86

Finding the Fourth Proportional to 7,110.36, 10,666.80 and 2,430.86

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Solution

The fourth proportional to 7,110.36, 10,666.80 and 2,430.86 is: 3,646.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.36 : 10,666.80 = 2,430.86 : x
  2. Step 2: Convert to fraction form
    7,110.36/10,666.80 = 2,430.86/x
  3. Step 3: Cross multiply
    7,110.36x = 10,666.80 × 2,430.86
  4. Step 4: Simplify right side
    7,110.36x = 25,929,444.11
  5. Step 5: Solve for x
    x = 25,929,444.11/7,110.36
  6. Step 6: Final answer
    x = 3,646.71

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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.