Home / 4,990.63-7,485.68-1,527.88

Finding the Fourth Proportional to 4,990.63, 7,485.68 and 1,527.88

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Solution

The fourth proportional to 4,990.63, 7,485.68 and 1,527.88 is: 2,291.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.63 : 7,485.68 = 1,527.88 : x
  2. Step 2: Convert to fraction form
    4,990.63/7,485.68 = 1,527.88/x
  3. Step 3: Cross multiply
    4,990.63x = 7,485.68 × 1,527.88
  4. Step 4: Simplify right side
    4,990.63x = 11,437,220.76
  5. Step 5: Solve for x
    x = 11,437,220.76/4,990.63
  6. Step 6: Final answer
    x = 2,291.74

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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.