Home / 4,528.08-6,234.12-3,128.40

Finding the Fourth Proportional to 4,528.08, 6,234.12 and 3,128.40

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Solution

The fourth proportional to 4,528.08, 6,234.12 and 3,128.40 is: 4,307.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,528.08 : 6,234.12 = 3,128.40 : x
  2. Step 2: Convert to fraction form
    4,528.08/6,234.12 = 3,128.40/x
  3. Step 3: Cross multiply
    4,528.08x = 6,234.12 × 3,128.40
  4. Step 4: Simplify right side
    4,528.08x = 19,502,821.01
  5. Step 5: Solve for x
    x = 19,502,821.01/4,528.08
  6. Step 6: Final answer
    x = 4,307.08

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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.