Home / 7,289.22-10,937.40-3,128.00

Finding the Fourth Proportional to 7,289.22, 10,937.40 and 3,128.00

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Solution

The fourth proportional to 7,289.22, 10,937.40 and 3,128.00 is: 4,693.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,289.22 : 10,937.40 = 3,128.00 : x
  2. Step 2: Convert to fraction form
    7,289.22/10,937.40 = 3,128.00/x
  3. Step 3: Cross multiply
    7,289.22x = 10,937.40 × 3,128.00
  4. Step 4: Simplify right side
    7,289.22x = 34,212,132.51
  5. Step 5: Solve for x
    x = 34,212,132.51/7,289.22
  6. Step 6: Final answer
    x = 4,693.52

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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.