Home / 4,245.55-6,368.29-2,990.98

Finding the Fourth Proportional to 4,245.55, 6,368.29 and 2,990.98

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Solution

The fourth proportional to 4,245.55, 6,368.29 and 2,990.98 is: 4,486.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,245.55 : 6,368.29 = 2,990.98 : x
  2. Step 2: Convert to fraction form
    4,245.55/6,368.29 = 2,990.98/x
  3. Step 3: Cross multiply
    4,245.55x = 6,368.29 × 2,990.98
  4. Step 4: Simplify right side
    4,245.55x = 19,047,428.02
  5. Step 5: Solve for x
    x = 19,047,428.02/4,245.55
  6. Step 6: Final answer
    x = 4,486.45

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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.