Home / 2,990.98-4,486.47-1,043.13

Finding the Fourth Proportional to 2,990.98, 4,486.47 and 1,043.13

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Solution

The fourth proportional to 2,990.98, 4,486.47 and 1,043.13 is: 1,564.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.98 : 4,486.47 = 1,043.13 : x
  2. Step 2: Convert to fraction form
    2,990.98/4,486.47 = 1,043.13/x
  3. Step 3: Cross multiply
    2,990.98x = 4,486.47 × 1,043.13
  4. Step 4: Simplify right side
    2,990.98x = 4,679,971.45
  5. Step 5: Solve for x
    x = 4,679,971.45/2,990.98
  6. Step 6: Final answer
    x = 1,564.70

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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.