Home / 1,555.55-2,146.00-1,030.67

Finding the Fourth Proportional to 1,555.55, 2,146.00 and 1,030.67

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Solution

The fourth proportional to 1,555.55, 2,146.00 and 1,030.67 is: 1,421.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.55 : 2,146.00 = 1,030.67 : x
  2. Step 2: Convert to fraction form
    1,555.55/2,146.00 = 1,030.67/x
  3. Step 3: Cross multiply
    1,555.55x = 2,146.00 × 1,030.67
  4. Step 4: Simplify right side
    1,555.55x = 2,211,801.94
  5. Step 5: Solve for x
    x = 2,211,801.94/1,555.55
  6. Step 6: Final answer
    x = 1,421.88

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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.