Home / 4,946.80-7,420.32-1,660.24

Finding the Fourth Proportional to 4,946.80, 7,420.32 and 1,660.24

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Solution

The fourth proportional to 4,946.80, 7,420.32 and 1,660.24 is: 2,490.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,946.80 : 7,420.32 = 1,660.24 : x
  2. Step 2: Convert to fraction form
    4,946.80/7,420.32 = 1,660.24/x
  3. Step 3: Cross multiply
    4,946.80x = 7,420.32 × 1,660.24
  4. Step 4: Simplify right side
    4,946.80x = 12,319,512.08
  5. Step 5: Solve for x
    x = 12,319,512.08/4,946.80
  6. Step 6: Final answer
    x = 2,490.40

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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.