Home / 3,030.34-4,547.60-1,990.84

Finding the Fourth Proportional to 3,030.34, 4,547.60 and 1,990.84

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Solution

The fourth proportional to 3,030.34, 4,547.60 and 1,990.84 is: 2,987.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.34 : 4,547.60 = 1,990.84 : x
  2. Step 2: Convert to fraction form
    3,030.34/4,547.60 = 1,990.84/x
  3. Step 3: Cross multiply
    3,030.34x = 4,547.60 × 1,990.84
  4. Step 4: Simplify right side
    3,030.34x = 9,053,543.98
  5. Step 5: Solve for x
    x = 9,053,543.98/3,030.34
  6. Step 6: Final answer
    x = 2,987.63

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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.