Home / 4,877.69-7,317.71-1,590.80

Finding the Fourth Proportional to 4,877.69, 7,317.71 and 1,590.80

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Solution

The fourth proportional to 4,877.69, 7,317.71 and 1,590.80 is: 2,386.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.69 : 7,317.71 = 1,590.80 : x
  2. Step 2: Convert to fraction form
    4,877.69/7,317.71 = 1,590.80/x
  3. Step 3: Cross multiply
    4,877.69x = 7,317.71 × 1,590.80
  4. Step 4: Simplify right side
    4,877.69x = 11,641,005.11
  5. Step 5: Solve for x
    x = 11,641,005.11/4,877.69
  6. Step 6: Final answer
    x = 2,386.58

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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.