Home / 1,913.69-2,870.16-526.67

Finding the Fourth Proportional to 1,913.69, 2,870.16 and 526.67

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Solution

The fourth proportional to 1,913.69, 2,870.16 and 526.67 is: 789.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913.69 : 2,870.16 = 526.67 : x
  2. Step 2: Convert to fraction form
    1,913.69/2,870.16 = 526.67/x
  3. Step 3: Cross multiply
    1,913.69x = 2,870.16 × 526.67
  4. Step 4: Simplify right side
    1,913.69x = 1,511,610.18
  5. Step 5: Solve for x
    x = 1,511,610.18/1,913.69
  6. Step 6: Final answer
    x = 789.89

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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.