Home / 7,430.40-11,149.65-3,048.30

Finding the Fourth Proportional to 7,430.40, 11,149.65 and 3,048.30

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Solution

The fourth proportional to 7,430.40, 11,149.65 and 3,048.30 is: 4,574.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,430.40 : 11,149.65 = 3,048.30 : x
  2. Step 2: Convert to fraction form
    7,430.40/11,149.65 = 3,048.30/x
  3. Step 3: Cross multiply
    7,430.40x = 11,149.65 × 3,048.30
  4. Step 4: Simplify right side
    7,430.40x = 33,987,478.10
  5. Step 5: Solve for x
    x = 33,987,478.10/7,430.40
  6. Step 6: Final answer
    x = 4,574.11

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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.