Home / 2,012.60-3,018.68-971.76

Finding the Fourth Proportional to 2,012.60, 3,018.68 and 971.76

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Solution

The fourth proportional to 2,012.60, 3,018.68 and 971.76 is: 1,457.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.60 : 3,018.68 = 971.76 : x
  2. Step 2: Convert to fraction form
    2,012.60/3,018.68 = 971.76/x
  3. Step 3: Cross multiply
    2,012.60x = 3,018.68 × 971.76
  4. Step 4: Simplify right side
    2,012.60x = 2,933,432.48
  5. Step 5: Solve for x
    x = 2,933,432.48/2,012.60
  6. Step 6: Final answer
    x = 1,457.53

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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.