Home / 1,543.93-2,130.60-914.86

Finding the Fourth Proportional to 1,543.93, 2,130.60 and 914.86

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Solution

The fourth proportional to 1,543.93, 2,130.60 and 914.86 is: 1,262.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543.93 : 2,130.60 = 914.86 : x
  2. Step 2: Convert to fraction form
    1,543.93/2,130.60 = 914.86/x
  3. Step 3: Cross multiply
    1,543.93x = 2,130.60 × 914.86
  4. Step 4: Simplify right side
    1,543.93x = 1,949,206.81
  5. Step 5: Solve for x
    x = 1,949,206.81/1,543.93
  6. Step 6: Final answer
    x = 1,262.50

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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.