Home / 7,417.65-11,128.23-2,420.00

Finding the Fourth Proportional to 7,417.65, 11,128.23 and 2,420.00

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Solution

The fourth proportional to 7,417.65, 11,128.23 and 2,420.00 is: 3,630.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,417.65 : 11,128.23 = 2,420.00 : x
  2. Step 2: Convert to fraction form
    7,417.65/11,128.23 = 2,420.00/x
  3. Step 3: Cross multiply
    7,417.65x = 11,128.23 × 2,420.00
  4. Step 4: Simplify right side
    7,417.65x = 26,930,260.96
  5. Step 5: Solve for x
    x = 26,930,260.96/7,417.65
  6. Step 6: Final answer
    x = 3,630.57

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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.