Home / 2,621.04-3,931.28-1,644.24

Finding the Fourth Proportional to 2,621.04, 3,931.28 and 1,644.24

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Solution

The fourth proportional to 2,621.04, 3,931.28 and 1,644.24 is: 2,466.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.04 : 3,931.28 = 1,644.24 : x
  2. Step 2: Convert to fraction form
    2,621.04/3,931.28 = 1,644.24/x
  3. Step 3: Cross multiply
    2,621.04x = 3,931.28 × 1,644.24
  4. Step 4: Simplify right side
    2,621.04x = 6,463,967.83
  5. Step 5: Solve for x
    x = 6,463,967.83/2,621.04
  6. Step 6: Final answer
    x = 2,466.18

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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.