Home / 1,530.13-2,106.21-1,333.30

Finding the Fourth Proportional to 1,530.13, 2,106.21 and 1,333.30

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Solution

The fourth proportional to 1,530.13, 2,106.21 and 1,333.30 is: 1,835.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.13 : 2,106.21 = 1,333.30 : x
  2. Step 2: Convert to fraction form
    1,530.13/2,106.21 = 1,333.30/x
  3. Step 3: Cross multiply
    1,530.13x = 2,106.21 × 1,333.30
  4. Step 4: Simplify right side
    1,530.13x = 2,808,209.79
  5. Step 5: Solve for x
    x = 2,808,209.79/1,530.13
  6. Step 6: Final answer
    x = 1,835.28

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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.