Home / 7,638.40-10,541.08-4,653.84

Finding the Fourth Proportional to 7,638.40, 10,541.08 and 4,653.84

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Solution

The fourth proportional to 7,638.40, 10,541.08 and 4,653.84 is: 6,422.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.40 : 10,541.08 = 4,653.84 : x
  2. Step 2: Convert to fraction form
    7,638.40/10,541.08 = 4,653.84/x
  3. Step 3: Cross multiply
    7,638.40x = 10,541.08 × 4,653.84
  4. Step 4: Simplify right side
    7,638.40x = 49,056,499.75
  5. Step 5: Solve for x
    x = 49,056,499.75/7,638.40
  6. Step 6: Final answer
    x = 6,422.35

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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.