Home / 3,030.76-4,211.47-2,999.08

Finding the Fourth Proportional to 3,030.76, 4,211.47 and 2,999.08

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Solution

The fourth proportional to 3,030.76, 4,211.47 and 2,999.08 is: 4,167.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.76 : 4,211.47 = 2,999.08 : x
  2. Step 2: Convert to fraction form
    3,030.76/4,211.47 = 2,999.08/x
  3. Step 3: Cross multiply
    3,030.76x = 4,211.47 × 2,999.08
  4. Step 4: Simplify right side
    3,030.76x = 12,630,535.45
  5. Step 5: Solve for x
    x = 12,630,535.45/3,030.76
  6. Step 6: Final answer
    x = 4,167.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.