Home / 5,289.80-7,300.15-2,931.94

Finding the Fourth Proportional to 5,289.80, 7,300.15 and 2,931.94

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Solution

The fourth proportional to 5,289.80, 7,300.15 and 2,931.94 is: 4,046.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.80 : 7,300.15 = 2,931.94 : x
  2. Step 2: Convert to fraction form
    5,289.80/7,300.15 = 2,931.94/x
  3. Step 3: Cross multiply
    5,289.80x = 7,300.15 × 2,931.94
  4. Step 4: Simplify right side
    5,289.80x = 21,403,576.21
  5. Step 5: Solve for x
    x = 21,403,576.21/5,289.80
  6. Step 6: Final answer
    x = 4,046.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.