Home / 2,890.34-4,336.26-810.35

Finding the Fourth Proportional to 2,890.34, 4,336.26 and 810.35

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Solution

The fourth proportional to 2,890.34, 4,336.26 and 810.35 is: 1,215.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.34 : 4,336.26 = 810.35 : x
  2. Step 2: Convert to fraction form
    2,890.34/4,336.26 = 810.35/x
  3. Step 3: Cross multiply
    2,890.34x = 4,336.26 × 810.35
  4. Step 4: Simplify right side
    2,890.34x = 3,513,888.29
  5. Step 5: Solve for x
    x = 3,513,888.29/2,890.34
  6. Step 6: Final answer
    x = 1,215.74

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1.5x scale

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.