Home / 1,544.18-2,130.93-845.55

Finding the Fourth Proportional to 1,544.18, 2,130.93 and 845.55

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Solution

The fourth proportional to 1,544.18, 2,130.93 and 845.55 is: 1,166.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.18 : 2,130.93 = 845.55 : x
  2. Step 2: Convert to fraction form
    1,544.18/2,130.93 = 845.55/x
  3. Step 3: Cross multiply
    1,544.18x = 2,130.93 × 845.55
  4. Step 4: Simplify right side
    1,544.18x = 1,801,807.86
  5. Step 5: Solve for x
    x = 1,801,807.86/1,544.18
  6. Step 6: Final answer
    x = 1,166.84

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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.