Home / 2,875.02-4,311.62-926.77

Finding the Fourth Proportional to 2,875.02, 4,311.62 and 926.77

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Solution

The fourth proportional to 2,875.02, 4,311.62 and 926.77 is: 1,389.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.02 : 4,311.62 = 926.77 : x
  2. Step 2: Convert to fraction form
    2,875.02/4,311.62 = 926.77/x
  3. Step 3: Cross multiply
    2,875.02x = 4,311.62 × 926.77
  4. Step 4: Simplify right side
    2,875.02x = 3,995,864.65
  5. Step 5: Solve for x
    x = 3,995,864.65/2,875.02
  6. Step 6: Final answer
    x = 1,389.86

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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.