Home / 1,416.51-2,124.67-868.77

Finding the Fourth Proportional to 1,416.51, 2,124.67 and 868.77

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Solution

The fourth proportional to 1,416.51, 2,124.67 and 868.77 is: 1,303.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416.51 : 2,124.67 = 868.77 : x
  2. Step 2: Convert to fraction form
    1,416.51/2,124.67 = 868.77/x
  3. Step 3: Cross multiply
    1,416.51x = 2,124.67 × 868.77
  4. Step 4: Simplify right side
    1,416.51x = 1,845,836.76
  5. Step 5: Solve for x
    x = 1,845,836.76/1,416.51
  6. Step 6: Final answer
    x = 1,303.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.