Home / 1,558.90-2,150.93-895.40

Finding the Fourth Proportional to 1,558.90, 2,150.93 and 895.40

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Solution

The fourth proportional to 1,558.90, 2,150.93 and 895.40 is: 1,235.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.90 : 2,150.93 = 895.40 : x
  2. Step 2: Convert to fraction form
    1,558.90/2,150.93 = 895.40/x
  3. Step 3: Cross multiply
    1,558.90x = 2,150.93 × 895.40
  4. Step 4: Simplify right side
    1,558.90x = 1,925,942.72
  5. Step 5: Solve for x
    x = 1,925,942.72/1,558.90
  6. Step 6: Final answer
    x = 1,235.45

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1.5x scale

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.