Home / 1,530.35-2,110.50-1,294.81

Finding the Fourth Proportional to 1,530.35, 2,110.50 and 1,294.81

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Solution

The fourth proportional to 1,530.35, 2,110.50 and 1,294.81 is: 1,785.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.35 : 2,110.50 = 1,294.81 : x
  2. Step 2: Convert to fraction form
    1,530.35/2,110.50 = 1,294.81/x
  3. Step 3: Cross multiply
    1,530.35x = 2,110.50 × 1,294.81
  4. Step 4: Simplify right side
    1,530.35x = 2,732,696.51
  5. Step 5: Solve for x
    x = 2,732,696.51/1,530.35
  6. Step 6: Final answer
    x = 1,785.67

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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.