Home / 3,077.95-4,621.02-2,618.68

Finding the Fourth Proportional to 3,077.95, 4,621.02 and 2,618.68

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Solution

The fourth proportional to 3,077.95, 4,621.02 and 2,618.68 is: 3,931.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.95 : 4,621.02 = 2,618.68 : x
  2. Step 2: Convert to fraction form
    3,077.95/4,621.02 = 2,618.68/x
  3. Step 3: Cross multiply
    3,077.95x = 4,621.02 × 2,618.68
  4. Step 4: Simplify right side
    3,077.95x = 12,100,936.46
  5. Step 5: Solve for x
    x = 12,100,936.46/3,077.95
  6. Step 6: Final answer
    x = 3,931.50

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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.