Home / 1,490.33-2,055.21-1,113.05

Finding the Fourth Proportional to 1,490.33, 2,055.21 and 1,113.05

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Solution

The fourth proportional to 1,490.33, 2,055.21 and 1,113.05 is: 1,534.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.33 : 2,055.21 = 1,113.05 : x
  2. Step 2: Convert to fraction form
    1,490.33/2,055.21 = 1,113.05/x
  3. Step 3: Cross multiply
    1,490.33x = 2,055.21 × 1,113.05
  4. Step 4: Simplify right side
    1,490.33x = 2,287,541.21
  5. Step 5: Solve for x
    x = 2,287,541.21/1,490.33
  6. Step 6: Final answer
    x = 1,534.93

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1.5x scale

Why These Related Problems?

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