Home / 2,177.15-3,002.94-1,430.87

Finding the Fourth Proportional to 2,177.15, 3,002.94 and 1,430.87

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Solution

The fourth proportional to 2,177.15, 3,002.94 and 1,430.87 is: 1,973.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.15 : 3,002.94 = 1,430.87 : x
  2. Step 2: Convert to fraction form
    2,177.15/3,002.94 = 1,430.87/x
  3. Step 3: Cross multiply
    2,177.15x = 3,002.94 × 1,430.87
  4. Step 4: Simplify right side
    2,177.15x = 4,296,801.74
  5. Step 5: Solve for x
    x = 4,296,801.74/2,177.15
  6. Step 6: Final answer
    x = 1,973.59

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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.