Home / 4,627.40-6,386.80-2,948.42

Finding the Fourth Proportional to 4,627.40, 6,386.80 and 2,948.42

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Solution

The fourth proportional to 4,627.40, 6,386.80 and 2,948.42 is: 4,069.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,627.40 : 6,386.80 = 2,948.42 : x
  2. Step 2: Convert to fraction form
    4,627.40/6,386.80 = 2,948.42/x
  3. Step 3: Cross multiply
    4,627.40x = 6,386.80 × 2,948.42
  4. Step 4: Simplify right side
    4,627.40x = 18,830,947.05
  5. Step 5: Solve for x
    x = 18,830,947.05/4,627.40
  6. Step 6: Final answer
    x = 4,069.45

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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.