Home / 4,927.20-7,390.80-4,370.40

Finding the Fourth Proportional to 4,927.20, 7,390.80 and 4,370.40

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Solution

The fourth proportional to 4,927.20, 7,390.80 and 4,370.40 is: 6,555.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,927.20 : 7,390.80 = 4,370.40 : x
  2. Step 2: Convert to fraction form
    4,927.20/7,390.80 = 4,370.40/x
  3. Step 3: Cross multiply
    4,927.20x = 7,390.80 × 4,370.40
  4. Step 4: Simplify right side
    4,927.20x = 32,300,752.32
  5. Step 5: Solve for x
    x = 32,300,752.32/4,927.20
  6. Step 6: Final answer
    x = 6,555.60

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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.