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Finding the Fourth Proportional to 3,065.40, 4,598.15 and 874.04

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Solution

The fourth proportional to 3,065.40, 4,598.15 and 874.04 is: 1,311.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.40 : 4,598.15 = 874.04 : x
  2. Step 2: Convert to fraction form
    3,065.40/4,598.15 = 874.04/x
  3. Step 3: Cross multiply
    3,065.40x = 4,598.15 × 874.04
  4. Step 4: Simplify right side
    3,065.40x = 4,018,939.67
  5. Step 5: Solve for x
    x = 4,018,939.67/3,065.40
  6. Step 6: Final answer
    x = 1,311.07

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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.