Home / 4,547.19-6,820.78-1,427.47

Finding the Fourth Proportional to 4,547.19, 6,820.78 and 1,427.47

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Solution

The fourth proportional to 4,547.19, 6,820.78 and 1,427.47 is: 2,141.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,547.19 : 6,820.78 = 1,427.47 : x
  2. Step 2: Convert to fraction form
    4,547.19/6,820.78 = 1,427.47/x
  3. Step 3: Cross multiply
    4,547.19x = 6,820.78 × 1,427.47
  4. Step 4: Simplify right side
    4,547.19x = 9,736,454.49
  5. Step 5: Solve for x
    x = 9,736,454.49/4,547.19
  6. Step 6: Final answer
    x = 2,141.20

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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.