Home / 6,215.04-8,577.36-4,640.40

Finding the Fourth Proportional to 6,215.04, 8,577.36 and 4,640.40

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Solution

The fourth proportional to 6,215.04, 8,577.36 and 4,640.40 is: 6,404.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.04 : 8,577.36 = 4,640.40 : x
  2. Step 2: Convert to fraction form
    6,215.04/8,577.36 = 4,640.40/x
  3. Step 3: Cross multiply
    6,215.04x = 8,577.36 × 4,640.40
  4. Step 4: Simplify right side
    6,215.04x = 39,802,381.34
  5. Step 5: Solve for x
    x = 39,802,381.34/6,215.04
  6. Step 6: Final answer
    x = 6,404.20

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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.