Home / 1,715.19-2,572.18-619.26

Finding the Fourth Proportional to 1,715.19, 2,572.18 and 619.26

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Solution

The fourth proportional to 1,715.19, 2,572.18 and 619.26 is: 928.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.19 : 2,572.18 = 619.26 : x
  2. Step 2: Convert to fraction form
    1,715.19/2,572.18 = 619.26/x
  3. Step 3: Cross multiply
    1,715.19x = 2,572.18 × 619.26
  4. Step 4: Simplify right side
    1,715.19x = 1,592,846.64
  5. Step 5: Solve for x
    x = 1,592,846.64/1,715.19
  6. Step 6: Final answer
    x = 928.67

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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.