Home / 4,089.20-6,117.60-3,547.40

Finding the Fourth Proportional to 4,089.20, 6,117.60 and 3,547.40

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Solution

The fourth proportional to 4,089.20, 6,117.60 and 3,547.40 is: 5,307.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.20 : 6,117.60 = 3,547.40 : x
  2. Step 2: Convert to fraction form
    4,089.20/6,117.60 = 3,547.40/x
  3. Step 3: Cross multiply
    4,089.20x = 6,117.60 × 3,547.40
  4. Step 4: Simplify right side
    4,089.20x = 21,701,574.24
  5. Step 5: Solve for x
    x = 21,701,574.24/4,089.20
  6. Step 6: Final answer
    x = 5,307.05

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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.