Home / 1,911.44-2,637.58-1,125.40

Finding the Fourth Proportional to 1,911.44, 2,637.58 and 1,125.40

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Solution

The fourth proportional to 1,911.44, 2,637.58 and 1,125.40 is: 1,552.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.44 : 2,637.58 = 1,125.40 : x
  2. Step 2: Convert to fraction form
    1,911.44/2,637.58 = 1,125.40/x
  3. Step 3: Cross multiply
    1,911.44x = 2,637.58 × 1,125.40
  4. Step 4: Simplify right side
    1,911.44x = 2,968,332.53
  5. Step 5: Solve for x
    x = 2,968,332.53/1,911.44
  6. Step 6: Final answer
    x = 1,552.93

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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.