Home / 2,916.64-4,025-1,590.40

Finding the Fourth Proportional to 2,916.64, 4,025 and 1,590.40

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Solution

The fourth proportional to 2,916.64, 4,025 and 1,590.40 is: 2,194.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.64 : 4,025 = 1,590.40 : x
  2. Step 2: Convert to fraction form
    2,916.64/4,025 = 1,590.40/x
  3. Step 3: Cross multiply
    2,916.64x = 4,025 × 1,590.40
  4. Step 4: Simplify right side
    2,916.64x = 6,401,360
  5. Step 5: Solve for x
    x = 6,401,360/2,916.64
  6. Step 6: Final answer
    x = 2,194.77

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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.