Home / 1,406.26-2,117.80-1,225.83

Finding the Fourth Proportional to 1,406.26, 2,117.80 and 1,225.83

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Solution

The fourth proportional to 1,406.26, 2,117.80 and 1,225.83 is: 1,846.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406.26 : 2,117.80 = 1,225.83 : x
  2. Step 2: Convert to fraction form
    1,406.26/2,117.80 = 1,225.83/x
  3. Step 3: Cross multiply
    1,406.26x = 2,117.80 × 1,225.83
  4. Step 4: Simplify right side
    1,406.26x = 2,596,065.35
  5. Step 5: Solve for x
    x = 2,596,065.35/1,406.26
  6. Step 6: Final answer
    x = 1,846.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.