Home / 3,130.79-4,319.53-2,013.02

Finding the Fourth Proportional to 3,130.79, 4,319.53 and 2,013.02

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Solution

The fourth proportional to 3,130.79, 4,319.53 and 2,013.02 is: 2,777.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.79 : 4,319.53 = 2,013.02 : x
  2. Step 2: Convert to fraction form
    3,130.79/4,319.53 = 2,013.02/x
  3. Step 3: Cross multiply
    3,130.79x = 4,319.53 × 2,013.02
  4. Step 4: Simplify right side
    3,130.79x = 8,695,289.85
  5. Step 5: Solve for x
    x = 8,695,289.85/3,130.79
  6. Step 6: Final answer
    x = 2,777.35

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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.