Home / 3,030.78-4,547.31-1,470.70

Finding the Fourth Proportional to 3,030.78, 4,547.31 and 1,470.70

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Solution

The fourth proportional to 3,030.78, 4,547.31 and 1,470.70 is: 2,206.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.78 : 4,547.31 = 1,470.70 : x
  2. Step 2: Convert to fraction form
    3,030.78/4,547.31 = 1,470.70/x
  3. Step 3: Cross multiply
    3,030.78x = 4,547.31 × 1,470.70
  4. Step 4: Simplify right side
    3,030.78x = 6,687,728.82
  5. Step 5: Solve for x
    x = 6,687,728.82/3,030.78
  6. Step 6: Final answer
    x = 2,206.60

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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.