Home / 1,990.53-2,746.89-1,106.28

Finding the Fourth Proportional to 1,990.53, 2,746.89 and 1,106.28

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Solution

The fourth proportional to 1,990.53, 2,746.89 and 1,106.28 is: 1,526.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990.53 : 2,746.89 = 1,106.28 : x
  2. Step 2: Convert to fraction form
    1,990.53/2,746.89 = 1,106.28/x
  3. Step 3: Cross multiply
    1,990.53x = 2,746.89 × 1,106.28
  4. Step 4: Simplify right side
    1,990.53x = 3,038,829.47
  5. Step 5: Solve for x
    x = 3,038,829.47/1,990.53
  6. Step 6: Final answer
    x = 1,526.64

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.