Home / 2,990.14-4,483.05-1,528.18

Finding the Fourth Proportional to 2,990.14, 4,483.05 and 1,528.18

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Solution

The fourth proportional to 2,990.14, 4,483.05 and 1,528.18 is: 2,291.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.14 : 4,483.05 = 1,528.18 : x
  2. Step 2: Convert to fraction form
    2,990.14/4,483.05 = 1,528.18/x
  3. Step 3: Cross multiply
    2,990.14x = 4,483.05 × 1,528.18
  4. Step 4: Simplify right side
    2,990.14x = 6,850,907.35
  5. Step 5: Solve for x
    x = 6,850,907.35/2,990.14
  6. Step 6: Final answer
    x = 2,291.17

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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.