Home / 5,547.84-7,655.76-3,311.20

Finding the Fourth Proportional to 5,547.84, 7,655.76 and 3,311.20

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Solution

The fourth proportional to 5,547.84, 7,655.76 and 3,311.20 is: 4,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,547.84 : 7,655.76 = 3,311.20 : x
  2. Step 2: Convert to fraction form
    5,547.84/7,655.76 = 3,311.20/x
  3. Step 3: Cross multiply
    5,547.84x = 7,655.76 × 3,311.20
  4. Step 4: Simplify right side
    5,547.84x = 25,349,752.51
  5. Step 5: Solve for x
    x = 25,349,752.51/5,547.84
  6. Step 6: Final answer
    x = 4,569.30

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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.