Home / 1,621.69-2,417.14-1,529.44

Finding the Fourth Proportional to 1,621.69, 2,417.14 and 1,529.44

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Solution

The fourth proportional to 1,621.69, 2,417.14 and 1,529.44 is: 2,279.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.69 : 2,417.14 = 1,529.44 : x
  2. Step 2: Convert to fraction form
    1,621.69/2,417.14 = 1,529.44/x
  3. Step 3: Cross multiply
    1,621.69x = 2,417.14 × 1,529.44
  4. Step 4: Simplify right side
    1,621.69x = 3,696,870.60
  5. Step 5: Solve for x
    x = 3,696,870.60/1,621.69
  6. Step 6: Final answer
    x = 2,279.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.