Home / 4,946.70-7,420.98-1,615.80

Finding the Fourth Proportional to 4,946.70, 7,420.98 and 1,615.80

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Solution

The fourth proportional to 4,946.70, 7,420.98 and 1,615.80 is: 2,424.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,946.70 : 7,420.98 = 1,615.80 : x
  2. Step 2: Convert to fraction form
    4,946.70/7,420.98 = 1,615.80/x
  3. Step 3: Cross multiply
    4,946.70x = 7,420.98 × 1,615.80
  4. Step 4: Simplify right side
    4,946.70x = 11,990,819.48
  5. Step 5: Solve for x
    x = 11,990,819.48/4,946.70
  6. Step 6: Final answer
    x = 2,424.00

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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.