Home / 1,421.27-2,130.99-599.32

Finding the Fourth Proportional to 1,421.27, 2,130.99 and 599.32

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Solution

The fourth proportional to 1,421.27, 2,130.99 and 599.32 is: 898.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421.27 : 2,130.99 = 599.32 : x
  2. Step 2: Convert to fraction form
    1,421.27/2,130.99 = 599.32/x
  3. Step 3: Cross multiply
    1,421.27x = 2,130.99 × 599.32
  4. Step 4: Simplify right side
    1,421.27x = 1,277,145.34
  5. Step 5: Solve for x
    x = 1,277,145.34/1,421.27
  6. Step 6: Final answer
    x = 898.60

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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.