Home / 4,631.40-6,389.75-2,640.52

Finding the Fourth Proportional to 4,631.40, 6,389.75 and 2,640.52

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Solution

The fourth proportional to 4,631.40, 6,389.75 and 2,640.52 is: 3,643.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,631.40 : 6,389.75 = 2,640.52 : x
  2. Step 2: Convert to fraction form
    4,631.40/6,389.75 = 2,640.52/x
  3. Step 3: Cross multiply
    4,631.40x = 6,389.75 × 2,640.52
  4. Step 4: Simplify right side
    4,631.40x = 16,872,262.67
  5. Step 5: Solve for x
    x = 16,872,262.67/4,631.40
  6. Step 6: Final answer
    x = 3,643.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.